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Thread: Oil in coolant

  1. #1
    Established Member Two Rings
    Join Date
    Nov 12 2007
    AZ Member #
    22510
    My Garage
    '03 A4 1.8TQM
    Location
    Washington

    Oil in coolant

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    How does oil end up in the coolant reservoir?

  2. #2
    Veteran Member Four Rings akaEsCo01's Avatar
    Join Date
    Dec 08 2006
    AZ Member #
    14057
    Location
    Jersey

    Re: Oil in coolant

    A blown head gasket

  3. #3
    Senior Member Three Rings
    Join Date
    Jul 09 2007
    AZ Member #
    19411
    My Garage
    01 A6 4.2 QUATTRO
    Location
    Portland, OR

    Re: Oil in coolant

    oil cooler is failrly common failure on these engines.

  4. #4
    Veteran Member Four Rings dirtybrd's Avatar
    Join Date
    Mar 21 2006
    AZ Member #
    10955
    My Garage
    Revo Tuned 2.0L w/35r
    Location
    Lakeland, FL.

    Re: Oil in coolant

    x2 too both of those.
    BetaAlphaTauMember#6

    I'm back bitches!

    35r and REVO...what?

  5. #5
    Established Member Two Rings
    Join Date
    Nov 12 2007
    AZ Member #
    22510
    My Garage
    '03 A4 1.8TQM
    Location
    Washington

    Re: Oil in coolant

    dont have a blown head gasket, just curious. Coolant is very merky.

    Trying to figure out where my oil is going, no visible leaks any where. Took off the intercooler found some in there, in the pipes as well, found some drops in the throttle body, havent really had any pinging either, well any i could hear

  6. #6
    Active Member Four Rings
    Join Date
    Dec 11 2006
    AZ Member #
    14100
    Location
    Boston

    Re: Oil in coolant

    How do you know you dont have a blown headgasket?

    Do a compression test.
    Stage 3+ RS6's

  7. #7
    Established Member Two Rings
    Join Date
    Nov 12 2007
    AZ Member #
    22510
    My Garage
    '03 A4 1.8TQM
    Location
    Washington

    Re: Oil in coolant

    Quote Originally Posted by deb38 View Post
    How do you know you dont have a blown headgasket?

    Do a compression test.
    already done

  8. #8
    Veteran Member Four Rings dirtybrd's Avatar
    Join Date
    Mar 21 2006
    AZ Member #
    10955
    My Garage
    Revo Tuned 2.0L w/35r
    Location
    Lakeland, FL.

    Re: Oil in coolant

    As G12 ages it becomes very nasty looking.
    BetaAlphaTauMember#6

    I'm back bitches!

    35r and REVO...what?

  9. #9
    Veteran Member Three Rings jojoampt's Avatar
    Join Date
    Jan 19 2008
    AZ Member #
    24323
    My Garage
    02' A4 Avant, 1.8T QM, 08' S-Line A3 MT
    Location
    Humboldt County

    Re: Oil in coolant

    happened on my old 02'... it was the oil cooler

  10. #10
    Senior Member Three Rings
    Join Date
    Jul 09 2007
    AZ Member #
    19411
    My Garage
    01 A6 4.2 QUATTRO
    Location
    Portland, OR

    Re: Oil in coolant

    oil residue in the intake piping,intercooler, and TB is normal.

  11. #11
    Senior Member Three Rings jessefrank's Avatar
    Join Date
    Jan 09 2006
    AZ Member #
    9614
    My Garage
    Q7.Prestige.S-line.Pkg.2
    Location
    Rapid.City

    Re: Oil in coolant

    If it's not the head gasket...then oil cooler or someone mixed your G12 w/ regular coolant.

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